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A carregar... Mars Direct: Space Exploration, the Red Planet, and the Human Future: A Special from Tarcher/Penguinpor Robert Zubrin
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The human race is at a crossroads. In the coming years, we will make decisions regarding our human spaceflight program that will lead to one of two familiar futures: the open universe of Star Trek, where we allow ourselves the opportunity to spread our wings and attempt to flourish as an interplanetary species-or the closed, dystopian, and ultimately self-destructive world of Soylent Green. If we ever hope to live in the future that is the former scenario, our first stepping stone must be a manned mission to Mars. Dr. Robert Zubrin details the challenges of a manned Earth-to-Mars mission. Challenges which, according to Zubrin, we are technologically more prepared to overcome than the obstacles of the missions to the moon of the sixties and seventies. Dr. Zubrin's relatively simple plan, called Mars Direct, could feasibly have humans on the surface of Mars within a decade. Zubrin also discusses the current predicament of NASA, the promise of privatized space flight from companies like SpaceX, and the larger implication behind the absolute necessity to open the final frontier to humanity-the human race's future as a species that takes the necessary baby steps away from the cradle that is planet Earth or, ultimately, perishes here. Não foram encontradas descrições de bibliotecas. |
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 Google Books — A carregar...GénerosSistema Decimal de Melvil (DDC)919.9History and Geography Geography and Travel Geography of and travel in Australasia, Pacific Ocean islands, Atlantic Ocean islands, Arctic islands, Antarctica and on extraterrestrial worlds Extraterrestrial regionsAvaliaçãoMédia: (3.75)
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First, Zubrin's concept of a direct-to-mars-and-return mission. This is a minimal-cost mission, which before SpaceX, was anticipated to be about $10-15B. Now that the Falcon launch vehicles are proven, the cost and risk have fallen substantially, but the likely mission has also expanded in scope, but still, this idea of a limited mission using just the required steps and technology, rather than NASA's attempts to justify a bunch of existing programs by linking them through tortured and tangential logic to a very complex and massively expensive plan, is solid.
Second, Zubrin's analysis of NASA's culture (particularly in the Shuttle era, and pre-SpaceX; 1980s-2010 or so) is spot on -- it is a pathologically risk averse bureaucracy and unsuited to the task.
Before SpaceX, I had basically given up on space as a viable field of human endeavor, as governments have every incentive wrong in doing it well. Fortunately, this book is now actually somewhat overcome by events it itself might have accelerated, and the "Mars Direct" option might not be the best option, but rather a more ambitious, but even more efficient, "Mars to Stay" could be better. (